Mold charge delivery apparatus



Get. 9, 1934. G ROWE MOLD CHARGE DELIVERY APPARATUS Filed June 10, 1932h vEnZ 01" 519011955 HUM/E yfl n WWW.

[91 Z [II'HLZYS \M Z HESS XB wmRM Patented Oct, 9, 1934 UNITED STATES1,976,194 MOLD CHARGE DELIVERY APPARATUS George E. Rowe, Wethersfield,Comm, assignor to Hartford-Empire Company, Hartford, Com, 3 corporationof Delaware Application June 10, 1932, SerialNo. 616,392"

4 Claims. (01. 49-14) This invention relates to improvements inapparatus for guiding or directing separated charges of molten glass tothe molds of a glassware forming machine.

5 In my prior application, Ser. No. 521,688, filed March 11, 1931, Idisclose apparatus for feeding molten glass, including a substantiallyvertical charge guide having a back wall and a pair of opposed sidewalls extending at substantially right angles with the back wall. Thischarge guide of my aforesaid prior application is open not only at itsupper and lower ends, but at its front, and the side walls thereof areadjustable with relation to each other.

The charge guide of my prior application is supported by suitableadjusting and operating mechanism whereby it may be accurately alignedwith a feeder outlet and with a mold to be charged, and may be moved inregister with the mold during the charging of the latter.

An object of the present invention is to improve a charge guide of thegeneral type of that disclosed in my prior application, that is, asubstantially vertical charge guide having a back wall and spacedopposed side walls extending at substantially right angles with the backwall, by providing simple and eflicient means for maintaining the wallsof the charge guide at.

a substantially uniform desirably low temperature, and for effecting amore positively controlled movement of a charge through the guide andcentrally into a mold that is to be charged.

A further object of the invention is to provide a charge guide of thegeneral character above referred to with a readily attachable andremovable means for preventing any forward deviation from a desirableright-line path of movement through the guide of any portion of a chargethat is being guided and directed to an underlying mold.

A further object of the invention is the provision in a charge guide ofthe general character above referred to of a simple, reliable andeflicient means at the front of the guide for applying fiuid underpressure to the inner walls of the guide and to the charge that ispassing therethrough for cooling and lubricating the walls of the guideand for preventing forward deflection of any portion of the charge fromthe path of movement required to deliver the charge axially andcentrally into an underlying mold.

A further object of the invention is to improve a cha ge guide of thegeneral character above referred to by providing improved means foradjustably connecting the side walls of the guide with the back portionthereof to permit convenient and easy adjustment of the side walls withrespect to each other without disassembly or loosening of the parts ofthe guide.

Other objects and advantages of the invention will become apparent fromthe following description of a specific embodiment of the invention,particularly when such description is considered in conjunction with theaccompanying drawing, in which Figure-1 is a view, mainly in sideelevation and partly in vertical section, showing a charge guideembodying the present invention supported in position to deliver acharge from a feeder into an underlying mold;

Fig. 2 is a relatively enlarged plan view of the improved charge guidealone;

Fig. 3 is a vertical section through the improved charge guide, theviewbeing taken substantially along the line 3-3 of Fig. 2; and

Fig. 4 is an elevation of the inner face of the combined front guard andfluid applying member of the improved guide.

The improved guide, generally designated G in the drawing, comprises anelongate vertical back member 11 which is substantially wedge shaped incross section, as best seen in Fig. 2.

The rear portion of this back member 11 is formed with laterallyextending ears or lugs 12 which may be clamped to a'substantiallyvertical supporting surface 15, Fig. 1, by washers 13 on bolts 14. Thesupporting surface 15 may be a side face of a cullet chute or trough 16,which is carried at the outer end of arm 17. The arm 17 is mounted forswinging movement within limits about the axis of a vertical column 18.The bolts 14 may be loosened to permit vertical adjustment of the backmember 11 on the supporting surface 15.

The front portion of the back member 11 has a substantially plane frontsurface, indicated at 19, which constitutes the back wall of the chargeguide. The side walls of the charge guide comprise the substantiallyvertical surfaces 20 and 21 respectively of opposed side members 22 and23, which are attached to and cooperate with the back member 11.

These side members 22 and 23 have laterally extending attaching flanges24 and-25 respectively disposed fiatwise against the front faces ofupper laterally extending ears or lugs 26 and lower laterally extendingears or lugs 27 on the front portion of the back member 11. Theattaching flanges 24 and 25 have upper and lower lateral slots 28 and 29respectively in their edge portions, these slots being open at the outeredges of such attaching flanges and being adapted to accommodate theshanks of bolts 30 which extend through openings 31 in the upper andlower lateral ears 26 and 27 of the back member. The rear ends of thesebolts 30 may be engaged by nuts 32. Springs 33 are disposed on theshanks of these bolts between the heads thereof and washers 34, whichbear against the attaching flanges 24 and 25. The pressure of thesesprings on the washers 34, and hence on the attaching flanges 24 and 25,may be varied by adjusting the nuts 32. Preferably, this pressure issufficient to hold the flanges firmly in place against the ears 26 and27, and at the same time adapted to permit the side members 22 and 23 tobe slid laterally, as a resultof positively applied force, toward oraway from each other, as required to adjust within limits the effectivewidth of the charge guide.

Except for the specific improved mechanism just described for adjustablyconnecting the side members 22 and 23 of the charge guide .with the backmember of that guide, the parts which have been described so far aresubstantially the same as those of the charge guide of my aforesaidprior application Ser. No. 521,688.

As in the case of the charge guide of said prior application, thesupporting mechanism for the present charge guide may be of suitableconstruction and provided with suitable adjustments and operatingmechanism to permit vertical and angular adjustments of the charge guideto assure exact alignment of the charge guide with the outlet 35 of anassociate feeder, designated generally F, at the proper time to receivea charge from the feeder and to permit swinging movement of the chargeguide in register with an underlying mold, designated M, for the properdelivery of the charge to the mold when the latter is carried by acontinuously moving table (not shown) or like carrier. The details ofthe adjusting and operating mechanism for the guide and of thesupporting and operating mechanism for the mold form no part of thepresent invention, and therefore need not be illustrated or describedherein. Any suitable mechanisms for these purposes may be employed,although I prefer to use mechanisms similar to those which are disclosedin my aforesaid copending application, Ser. No. 521,688.

The back member 11 of the improved guide is provided with an internalcooling chamber or space 36, Figs. 2 and 3. This cooling chamber 36 maybe provided at its lower end with an inlet 37 and, adjacent to its upperend, with an outlet 38. The inlet and the outlet may be connected withany suitable fluid conducting means, whereby a cooling fluid may besupplied to the chamber 36 and circulated through the back member in amanner which is obvious. The cooling chambe: or space 36 is shown inFig. 3 as terminating somewhat above the level of the lower end of theback member ll. but it is obvious that this cooling space may extendsubstantially the full length of the back member or for any desirablepart of such length.

A combined front guard and fluid pressure applying memb r is indicatedat 39 in the drawing. As shown to advanrage in Fig. 3, the member 39 isof elongate hollow form and has an internal chamber 46 extendingsubstantially the full length of the member 39. The chamber 40 may beclosed at its lower end and provided at its upper end with an inlet 41adapted for connection with a fluid pressure supply pipe or tube 42.

The inner wall of the member 40 is formed at intervals throughout itslength and width with downwardly inclined discharge orifices 43. Theseorifices 43 may be arranged in a plurality of vertical rows with theorifices of the respective rows staggered vertically, as shown in Fig.4. Where there are three vertical rows of orifices as shown, theorifices of the middle row may be located in a vertical planeapproximately midway between the side edges of the member 39, while theoriiices of the side rows may be inclined downwardly and laterallyoutward so as to be located in divergent vertical planes, as best seenin Fig. 2. With this arrangement, jets of fluid from the oriflces 43will impinge obliquely against the side walls of the guide as well asagainst the back wall thereof when the guard and fluid appying member issupported at the front of the guide, as shown in Figs. 1 to 3, inc.

For supporting the member 39 in operative position at the front of thecharge guide, the following mechanism may be employed. Forwardlyextending lugs or ears 44 on one of the side members 22 or 23 (on themember 23 in the form shown) are provided with horizontal slots 45 whichare open at the outer ends of the lugs 44. The lugs are spacedvertically a distance corresponding approximately with the distancebetween vertically spaced bosses 46 and 4'7 on the member 39. The outerfaces of these bosses may be clamped firmly against the lugs 44 by meansof cap bolts 48 which extend through the slots 45 and are threadedlyengaged with the walls of suitable lateral openings in the bosses 46 and4'7. Washers 49 preferably are disposed on the shanks of the cap bolts48 between the heads thereof and the slotted portions of the lugs 44. Byloosening the bolts 48, the shanks thereof may be slid along the slots45 to adjust the position of the inner surface of the member 39 withrespect to the back wall 19 of the charge guide. The bosses 46 and 47are of suflicient lateral extent to locate the longitudinal median lineof the member 39 approximately midway between the planes of the sidewalls of the guide.

The lugs 44 also provide a convenient means for manipulating the member23 when it is desired to adjust such member laterally on the back memberof the charge guide. A lug 50 or other handle may be provided on themember 22 to permit convenient lateral adjustment of the member 22either coincidentally with adjustment of the member 23 or with respectto the latter. These lugs 44 and 50 may be grasped or tapped with asuitable implement to eflect the desired adjustment of the width of thecharge guide.

The surfaces 20 and-21 of the side members of the guide may besubstantially straight from the lower ends of such members nearly to theupper ends thereof. the extreme upper end portions of such surfacesbeing curved or beveled. as indicated at 51 in Fig. l. The inner wall ofthe member 39. likewise may curve upwardly and outwardly adjacent ts itsupper end, as indicatedat 52. The flaring in t'nn manner of the upperend of the charge d rec ing space of the gnide will aid in effectingproper entry of falling charge, such as indicated at 53 in Fig. 1, intosuch space.

From the foregoing desoru'tion of the various parts of the improvescharge guide. the operation thereof will be readily understood When thecharge guide is supported by any suitable structure, preferably ashereinber'ore has been indicated, below and in alignment with the outlet35 of the feeder F, the charge delivered by the latter will fall axiallydownward into the charge directing channel of the guide without anyportion of the charge striking the upper edge of any of the walls of thecharge guide. The charge will be directed by the walls of the guidedownwardly into the underlying mold M, which may be an inverted parisonmold, as shown. If the mold is carried by a continuously moving carrier,the guide will be provided with suitable mechanism for moving it inregister with the mold during the delivery of the charge to the mold.

The contact of the charge with walls of the guide will be reduced to aminimum, such contact being along vertical lines. Undue or unequalchilling of the charge by the guide thus will be obviated.

The cooling of the back member of the guide, which is the heavier andlarger portion thereof, will prevent objectionable heating of suchmember and will tend to maintain the walls of the guide, or at least theback wall of the guide, in a desirably cool condition. This cooling ofthe guide by the provision of the cooling space in the back memberthereof may be supplemented by the application to the inner'walls of theguide of jets of air or air having oil entrained therewith or othercooling fluid from the orifices 43. Preferably, the fluid delivered fromthe oriflces 43 is under sufficient pressure to prevent any forwarddeflection of any portion of the charge from a desirable vertical pathof movement through the charge guide into the underlying mold and willaid in directing the charge downwardly along such path. of course,should abnormal circumstances cause a forward deflection of the chargeor of any portion thereof, the contact thereof with the inner wall ofthe guard 39 would restore the deflected portion of the charge to itsproper path of movement and assure entry of the charge centrally intothe cavity of the mold with which the charge guide was aligned. Thefluid discharging from the orifices 43 to the interior of thechargeguide will tend to maintain a condition of uni forrr. anddesirable temperature at the places of contact between the glass andwalls of the guide. Furthermore, such fluid may lubricate the portionsof the charge guide with which the falling charge contacts. so that thepassage of the charge through the guide will be facilitated.

For these other reasons. which will be apparent iron; the foregoingdescription, the improved charge guide arlords facilities for directinga Bailing charge into an underlying mold accurately withoutimpairment ofthe thermal condition or objectionable change of shape of the charge.

It will be noted that the member 39, while serving as a frcnt guard andfluid applying device for the guide, 'does not entirely close the guideat the front but on the contrary permits both a view of and circulationof air through the charge directing llltEliOl' of the guide.

the guard is quickly removable LO permit access to the interior of theguide for any purnose and be as quickly replaced when that purpose hasbeen served.

It is to be understood that the invention may oe QIPDOdlEtIL in variousforms which may vary as to the construction, combination, andarrangement of the parts thereof without departing from th spirit andscope of the invention, which is not to be limited except as required bya fair con struction of the terms of the appended claims.

I claim:

1. In mold charge delivery apparatus, a substantially vertical chargeguide comprising a back member and apalr of spaced side members attachedto the backmember and cooperating with the latter to produce a chargeguiding channel, vertically spaced forwardly projecting lugs on one ofsaid side members, said lugs having horizontal slots therein open attheir outer ends, an elongate guard having laterally extending bossesadapted to bear against the slotted portions of said lugs, and attachingdevices extending through the slots of said lugs and engaged with saidbosses for supporting said guard at the front of said charge directingchannel in parallel relation with the back wall thereof andapproximately midway between the planes of the side members of saidguide.

2. In mold charge delivery apparatus, a substantially vertical chargeguide comprising a back member and a pair of spaced side membersattached to the back member and cooperating with the latter to produce acharge guiding channel, vertically spaced forwardly projecting lugs onone of said side members, said lugs having horizontal slots therein openat their outer'ends, an elongate guard having laterally extending bossesadapted to bear against the slotted portions of said lugs, and attachingdevices extending through the slots of said lugs and engaged with saidbosses for supporting said guard at the front of said charge directingchannel in parallel relation with the back wall thereof andapproximately midway be tween the planes of the side members of saidguide, said guard also being adapted to discharge fluid under pressureinto the charge directing channel of said guide at different placesalong the length of the latter.

3. In mold charge delivery apparatus, a charge guide for receiving aseparated preformed falling mold'charge of molten glass and for guidingsaid charge to an underlying charge receiver, said charge guidecomprising a substantially vertical back member and a pair ofsubstantially vertical side members, said back member and said sidemembers having substantially plane inner su: faces and being relativelydisposed so that the inner surfaces of the side members are located inspaced confronting relation each with respect to the other and each atapproximately right angles with the inner surface of the back member,thus producing a substantially vertical channel of such character as toguide the falling charge by contact therewith along but three spacedvertical lines, and a removable substantially vertical elongate guard atthe front of said vertical channel for preventing substantial forwarddisplacement of the falling charge from its vertical path of movement inthree-line contact with the inner walls of c said channel, said elongateguard member being adapted to direct fluid under pressure into the spacewithin said channel and against the walls thereof.

4. In mold charge delivery apparatus. a charge guide for receiving aseparated preformed falling mold charge of molten glass and for guidingsaid charge to an underlying charge receiver, said charge guidecomprising a substantially vertical back member and a pair ofsubstantially vertical side members, said back member and said sidemembers having substantially plane inner surfaces and being relativelydisposed so that the inner surfaces of the side members are located inan vinternal chamber for the reception 01' a fluid and having in itsinner wall substantially vertical rows of downwardly and inwardlyinclined orifices for discharging fluid from said internal chamber intothe interior of said channel, certain of said orifices lying in avertical plane extending approximately midway between the side walls 01said channel and other of said orfices lying in vertical planes whichdiverge toward the side walls of said channel.

GEORGE E. ROWE.

